Valve for hydraulic engines or machinery.



No. 732,732. PATENTE'D SEPT. s, 1903, A. PATTERSON.

N0 MODEL.

tzu m they are more thoroughly balanced, and hence To all whom it mayconcern.-

UNITED STATES Patented September 8, 1903.

ANTHONY PATTERSON, OF CARDIFF, ENGLAND.

VALVE FOR HYDRAULIC ENGINES OR MACHINERY:

SPECIFICATION forming part of Letters Patent No. 738,732, datedSeptember 8, 1903.

Original application filed May 13, 1902, Serial No. 107,175. Divided andthis application filed March 30, 1903. Serial No. 150,300- (No model.)

Be it known that I, ANTHONY Parrnnson, a subject ofthe King of GreatBritain, residing at Cardiff, in the county of Glamorgan',Wales,England, have invented certain new and use f ul Improvements in Valvesfor Hydraulic Engines and Machinery, (Case D and Ido hereby declare thefollowing to be afull, clear, and exact description of theinvention,such as will enable others skilled in the art'towhich it appertains to make and use the same.

My invention relates to valves for hyd raulic engines and hydraulicmachinery. By the improvements in which my invention consists suchvalves are of increased efficiency, because they are more completelyWater-tight,

thewear and tear in them are reduced and they are actuated with greaterease and expedition and are under more complete control. They aresuitable for very high water-pressures. The valves are less liable toshocks and consequent injury to themselves and the engines in connectionwith which they are fitted and in the operation of which they areemployed. V

This application isa division of my former 1 application, Serial No.107,175, filed May 13,

In the accompanying drawings, Figure 1 represents a longitudinal sectionof my in vention, and Fig. 2 is a cross-sction of the same through thecenter piece of the valve.

The valve which is the subject of the present invention is a Workingvalve-that is to say, a valve which is operated by the engine itself.The working valve shown in the drawings is single acting -that is tosay, it is not used in connection with a reversing-engine. This valvehasa long hollow throat 0, one end of which isclosed by the plug w andthe other end of which terminates in the comically-shaped center piece10. This center piece 19 is provided with a chamber c and a passageterminating in ports q and g separated from each other by anearly-vertical valve at or nearits center.

partition The outer end (shown on the left in Fig. 1) of the centerpiecep is closed.

Surrounding the centerpiece p is a similarly-shaped casingp, having twoports 13 and 10 leading into the branch connections rand r, of which theformer is connected to the engine or machine which the valve controlsand the latter serves as an exhaust. It should be noted that thesesupply and exhaust connections are located at right angles to the axisof the valve.

A stuffing-box d is arranged around the threat 0 near one of its ends tokeep the water or other motor fluid from leaking out between the centerpiece ]o and casing 12, and

this stuffing-box is secured to the casing 19 by bolts e.

' m represents the shifting-lever so connected with the operating partsof the enginethat it automatically shifts the valve from the supplyposition to the exhaust position at the proper time. This lever isconnected to said This lever is adjustable back and forth upon the valveto which itis splined. A setscrew c is used to secure the lever in itsdesired position upon the valve. on represents the inlet-pipe for themotor fluid,which is connected to the valve at right angles to its axis.

Stuffing-boxes fand g are used on either side of the point where thepipe a communicates withthe valve, andthese stoning-boxes are secured tothe casing 7t by bolts 6.

The casing h surrounds the valve at the point where the motor fluid isdelivered to said valve through the opening 7 and pipe at delivers intothis casing h. Bolts 7c (shown in section in Fig. 2) hold the partsfirmly together. These bolts pass through extensions in the casingsp andh.

Having thus described my invention, what Iclaim as new, and desire tosecure by Letters Patent of the United States,is--

A single-actin g working valve for hydraulic engines, havinga longthroat and having one end thereof closed by a plug and terminating atthe other end in a conically-shaped center piece, provided with achamber and a passage, in combination with a comically-shaped casingsurrounding said center piece, and provided with passages and portsarranged at right angles to the axis of said valve, an operating-leverconnected to said valve at or near its center, asupply-pipe at rightangles to said valve, and stuffing-boxes, substan' tially as described.10 In testimony whereof I aflix my signature in presence of twowitnesses.

' ANTHONY PATTERSON. Witnesses:

CLARA EMILY WAKEFORD, STANLEY RALPH PATTERSON.

